A piece of blue ribbon is 7/10 meter long. A piece of green ribbon is 9/100 meter long. What is the total length of the two pieces of ribbon?
Understand the Problem
The question is asking to calculate the total length of two pieces of ribbon by adding their lengths together, where one piece is given as a fraction and the other as a decimal.
Answer
The total length of the two pieces of ribbon is $0.79$ meters.
Answer for screen readers
The total length of the two pieces of ribbon is $0.79$ meters.
Steps to Solve
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Convert the fraction to decimal To add the lengths more easily, convert the fraction $\frac{7}{10}$ to decimal. $$ \frac{7}{10} = 0.7 $$
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Identify the decimal length of the green ribbon The green ribbon is given as a fraction already converted to decimal: $$ \frac{9}{100} = 0.09 $$
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Add the lengths together Now add the decimal lengths of both ribbons: $$ 0.7 + 0.09 $$
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Calculate the total Perform the addition: $$ 0.7 + 0.09 = 0.79 $$
The total length of the two pieces of ribbon is $0.79$ meters.
More Information
The total length of both ribbons indicates how measurements can be expressed in different forms, such as fractions and decimals, which can be easily converted for addition.
Tips
- Forgetting to convert the fraction into a decimal before adding.
- Misplacing the decimal point during addition.
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